Mariah Carey has proven over 23 years that she has one of the best voices ever in popular music. She is the most emulated singer of all-time. If she lip-syncs a bunch these days, it's just because she doesn't want to disappoint anyone. I wish she'd sing live too, but I get it. Also, she does sing live. Her Jimmy Fallon All I Want For Christmas Is You from last year was acapella and incredible. Give Mariah a break- she's amazing.

Re: Lisa – YES! I wanted to comment almost the same thing that you have. I couldn't have stated it any better. She has arguably THE best voice in the ENTIRE music industry (except Whitney, who is unfortunately no longer with us). All of these teenagers & early 20-somethings need to lay off her because I highly doubt they can name even 5 of her songs off the top of their head. I have also witnessed her singing live and it is Amazing. These complainers need to BOW DOWN to the ORIGINAL Queen of R&B music.

Kikrn., that's exactly why we are disappointed in this performance. We know Mariah is capable. We know she can show these teeny bops how a real singer does it. Instead she chose to do what they do and lip synch. Unfortunately she deserves all the criticism. And frankly, it's insulting to the fans that she and her people want to pass that off as live.

Re: Phanat1c – I know, but she doesn't have anything to prove to anyone. It just reminds me of Beyonce being criticized, but we all know she can sing too. But yes, it is disappointing because when you hear that Mariah Carey will be performing at an awards show you look forward to hearing that amazing voice and then when you don't get to it's a bummer.

She only has TWO lines in this song, TWO lines ! And she couldn't even manage to sing them live. It's not like she's dancing. There's no excuse for this except if her voice is gone which seems to be the case (as his her career : Triumphant = flop, All i want for christmas with Bieber = flop, Almost home = flop, American Idol = flop, #beautiful = peaked at #15 and she's a featured guest on her own song, album pushed back at the last minute…… Her career is now hosting the Home Shopping Network and representing Weight watchers. Sad

Re: KikiRN – It is not about her having something to Prove. It's about being real. Anyone (maybe not anyone but close) can sound good singing in a studio due to retakes and editing but only the true talented can sing live and sound great. So when a living legend lip sings she opens herself up to the critics and rightfully so. Her fans have grown to expect more from her than they do from the run of the mill pop people.

wasnt she put on vocal rest a couple weeks ago? and with her still working on her album.. maybe something just isnt right and thats why she lip synced? besides. its the BET awards, not the Grammy's - not a big deal.

This performance was very disappointing. I love Mariah too but we can't keep calling her one of the best singers in the world if singing live is so difficult for her. Anybody can go up there and look pretty and lip sync. She wasn't even dancing or moving to get winded.
Some people are commenting that we all know she can sing so it doesn't matter…?? Then why not just sing? I'd prefer to listen to some mistakes and wrong notes than a prerecorded track. I wonder if she does this in concert as well. I'd be so upset that I spent my money.

Another amazing singer, Christina Aguilera, prides herself on always singing live. I think Mariah should do the same.

Here's my thing - above/beyond he lip-synching debacle. Why is she way off somewhere in such a seculeded section of the stage. Everyone else came out and engaged themselves with the audience or at least came near. Not Mariah - almost looks as if she is in some type of invisible capsule.

And yes - she is lip-synching. Oops that might be why she is chose to be so far back from the audience. She just seems to have placed herself on some type of DIVA pedestal that no one cares about except her. Soooo sad because she does have a great voice and when she gets older no one will even care at all. Then she'll be begging the audience (or anyone else for that matter) to even want to look at her.

Mariah carey is singing with a back track, I believe.. just in some parts but the voices are mixed higher which is in theory a "lip sync"if she does not sing with it. the fact that she is singing with it can not be dubbed a lip sync.. see how that works!!! OMG it television entertainment. They all fake it and lost them selves as human beings anyway!!! even the music stops being real!! yes not all, but 99% of popular music in 2013 can be rendered a a hugh lip sync.. thank you…HELLO and GOODBYE!!!!

Mariah Carey has been using CUT AND PASTE technique the whole time in her singing career. The technique allows the artist to cut and paste multiple acrobatic vocals recorded in multiple takes seamlessly into one record without the fans noticing that they were actually recorded not just in one take. This technique makes her songs incredibly difficult to sing live, no one can sing her songs exactly the way it was recorded using CUT and PASTE technique, no one including herself. This technique is clearly visible in Vision of Love specially in the middle part of the song.

Aretha Franklin is 72 years old and can still sing LIVE so what's your lame excuse Mariah? If your voice is gone then stop faking it, get off the stage and try acting. That's basically what you are doing when you lip synch…. acting!

Re: mktb – how can you say she is a fraud? she's proven time and time again that she has an amazing voice! i dont understand by people dont realise that when they watch videos like that, there is a voice over, so youre not actually hearing it from the video, WHY IS THAT SO HARD TO UNDERSTAND?!?!?!?

Re: LADY RARA – umm thats why when she sings songs like that live she has her back up singers, who do some parts of the multiple voices so she can sing the main parts… i thought that would be obvious to anyone who watched an actual video of her live

Re: rachy – thats a massive lie i saw her live in january 100% live, she can sing just as good as she could! dont make stupid comments when you clearly dont know the difference between lip syncing and live performances with the live audio applied onto the video for tv!

Re: Phanat1c – she doesnt deserve any criticism at all, she sings live, tv performances have the video and the audio applied separately, go look at the tv broad cast on good morning amercia where she sung always be my baby and #beautiful, then look at the ones recorded by fans, you can easily tell she is singing live by the fan recorded videos!

Re: Mariah sucks – her excuse is that your a stupid retard, its TV!!!!! why cant people get it though their heads that the video and audio are applied separately in things like this??? its not some big secret people use your brains!

Let's all keep in mind that she has done MUCH worse lip-syncing, especially during practically every performance of Get Your Number, a time when she was back at #1. This wasn't even that bad, the only reason it's noticed is because of how perfect said track sounds. Her actual supposed lip-synching isn't bad.

Zayn previewed the duet by posting a black and white pic of himself with Swifty on his Instagram -- but hey, she is bestiez with his girlfriend Gigi Hadid, so it wouldn't be unusual that they hang out... But collab?!